Endovascular Embolization

Endovascular embolization of AVMs is a rapidly evolving technique. This treatment modality is used primarily as an adjunct to surgery or radio-surgery to reduce blood flow and eliminate surgically inaccessible arterial feeders pre-operatively or to incrementally reduce the size of a large AVM nidus, making it amenable to surgical or radiosurgical treatment. The optimal time between embolization and surgery is not defined. Most surgeons, however, operate within 5-7 days after the last embolization to prevent recruitment of new vessels. In some patients, endovascular embolization may be used as a palliative measure to treat headaches or reverse neurologic deficit, whereas, in a small number of select patients, AVM embolization may be curative (Table 20.4). The long-term

Table 20.4. Results of AVM embolization in the contemporary literature




No. Cases

Obliteration rate

Minor deficit

Major deficit



Headache Happiness

Headache Happiness

Headache Happiness! Stop Your Headache BEFORE IT STARTS. How To Get Rid Of Your Headache BEFORE It Starts! The pain can be AGONIZING Headaches can stop you from doing all the things you love. Seeing friends, playing with the kids... even trying to watch your favorite television shows. And just think of how unwelcome headaches are while you're trying to work.

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